Your GI was probably referring to your Sedimentation rate A.K.A. Sed Rate or ESR. I wouldn't worry about
it too much since you have UC and are flaring.... if you didn't have UC then it might be something to be concerned about
If you had your Peroid when you had your blood drawn it may affect the results. Let your GI handle this and try not to worry about
P.S. Anemia will affect your sed rate too.
DX'd with Pan-Colitis June 2005
Current Status: Flaring since May 2007
Current Meds: 50 mgs 6-mp, Colocort, Oral Cyclosporine (250 mgs), Hyoscyamine .375 mgs
Supplements: Forvia multi-vitamin